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Canvas Stream Rendering Bottlenecks in Annotation-Over-Video Tools : Durability for Long-Running Client-Side Sessions
TypeScriptWebGLOffscreenCanvascaptureStream
Problem Breakdown
The durability defect is the all-or-nothing memory model: long-running client work (recording, processing, capture) accumulates its output in memory and writes only at completion, so any crash, update, or accidental close destroys hours of work at the moment of maximum investment. Tools that draw annotations over captu…
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